Code P1259?

Tiny
BOBBYVAUGHN
  • MEMBER
  • 2002 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 170,000 MILES
My car is giving me a P1259 code. When under load it shudders when downshifing from 4 ot 3 or upshifting from 3 to 4. Any suggestions?
Friday, June 6th, 2008 AT 7:03 AM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The P1259 code is for the VTECH oil pressure switch or VTECH solenoid valve circuit fault.
Sometimes resetting the ECM will reset the VTECH switch/solenoid.

DTC P1259: A problem in the VTEC Oil Pressure Switch circuit or VTEC Solenoid Valve circuit.

I have attached (look below) the diagnostics for that code. This should help you determine where the issue is. This process will require you to use a multimeter to check various measurements.

Here is a helpful article:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

Please let me know of any questions.

Thank you.
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Tuesday, July 27th, 2021 AT 9:29 PM

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